Question

rationalise the denominator----->1/√5

Answer 1

Answer:

$\frac{\sqrt{5} }{5}$

Step-by-step explanation:

$\frac{1}{\sqrt{5} }$

=$\frac{1}{\sqrt{5} } X \frac{\sqrt{5} }{\sqrt{5} }$

= $\frac{\sqrt{5} }{\sqrt{[5 ]^{2} } }$

=$\frac{\sqrt{5} }{5}$

as 5 is a rational no., we have rationalized the denominator from an irrational no . to a rational no.

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